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The 270 Winchester Short Magnum or 270 WSM is a short magnum cartridge created by necking down the .300 Winchester Short Magnum and fitting it with a .277 caliber bullet. The correct name for the cartridge, as listed by the Sporting Arms and Ammunition Manufacturers' Institute ( SAAMI ), is 270 WSM, without a decimal point. [ 3 ]
The .270 ICL is an improved .264 Winchester Magnum necked up to .270. It's a relatively efficient cartridge for its class. It's a relatively efficient cartridge for its class. Performance with a 130-grain (8.4 g) bullet is approximately 3,405 ft/s (1,038 m/s) and with a 150-grain (9.7 g) bullet is approximately 3,250 ft/s (990 m/s).
The .270 Weatherby Magnum was the first belted magnum based on the .300 H&H Magnum to be developed by Roy Weatherby in 1943. [2] The cartridge is short enough to function in standard-length long actions with a brass length of 2.549" or 64.74mm and an overall length of about 3.295".
A wildcat cartridge based on the .25 WSSM, called the .358 WSSM or .358 BFG, has similar performance to the standard .358 Winchester and .35 Whelen. [6] Additionally, Olympic arms created the .300 OSSM, which is a 25 WSSM necked up to .308” giving performance between 30-06 and .300 Winchester Magnum. [citation needed]
The .270 Winchester is a rifle cartridge developed by Winchester Repeating Arms Company in 1923, and it was unveiled in 1925 as a chambering for their bolt-action Model 54 [3] to become arguably the flattest shooting cartridge of its day, only competing with the .300 Holland & Holland Magnum, also introduced in the same year. [4]
A magnum cartridge is a firearm cartridge with a larger case size than, or derived from, a similar cartridge of the same projectile caliber and case shoulder shape. [ clarification needed ] The term derives from the .357 Magnum , the original revolver cartridge with this designation.
Cabela's Inc. is an American retailer that specializes in hunting, fishing, boating, camping, and other outdoor recreation merchandise. The chain was founded by Richard N. Cabela and Jim Cabela in 1961. Cabela's was acquired by Springfield, Missouri-based Bass Pro Shops in 2017 and has been a subsidiary since then. The brand’s retail ...
Comparison of trajectories of the .30-06 Springfield, .270 Winchester and the .257 Weatherby Magnum. The .257 Weatherby is known for its long range performance and is considered an accurate flat shooting cartridge. Initially due to the cartridge's high velocity the cartridge exhibits less bullet drop than most other cartridges.